Paul jablochkoff



(NoModeL). JABLQGHKOFF.

DYNAMO ELECTRIC MACHINE.

No. 266,993. Patented Nov. '7, 1882.

WITNESSES; INVENTOR:

5M5; h B 125's Attorneys,

N. PETKRS Pnolo-Lilhcgnphar. wumnnm. D. C.

UNITED STATES PATENT OEEIc PAUL JABLOCHKOFF, OF PARIS, FRANCE.

DYNAMO-ELECTRIC MACHINE.

SPECIFICATION forming part of Letters Patent No. 266,993, dated November'7, 1882,

Application filed September 6, 1882. (No model.) Patented in France May2, 15:82, and in England June 13, 1882, No. 2.765).

To all whom at may concern Be it known that I, PAUL JAELooHKorE, aresident of Paris, France, haveinvented certain Improvements inDynamo-Electric Machines, of which the following is a specification.

The object of my invention is the production of a dynamo-electricmachine of great sim- )licit which can be used either as a enerator oras a motor. The distinguishing feature of my machine is the inclinationof the axis of rotation relatively to the magnetic fieldan orientationsomewhat suggestive of the inclination of the ecliptic, wherefore I havenamed my invention the ecliptic dynamoelectric machine.

Figure l of the accompanying drawings is a section of the simplest formof my invention. Fig. 2 is a similar section of another form. Fig. 3 isa similar section of still another form. Fig. 4 is a fragmentary view,showing one of the details of the machine illustrated in Fig. 3; andFig. 5 is a vertical section of a further modification of my invention.

The simple form of my machine shown in Fig. 1. consists of an armature,A, placed between two poles, N and S, of the fieldanagnets. The armatureis so wrapped with wire as to constitute an electromagnet,-ot' which itsopposite soft-iron cheeks, a and b, constitute the opposite poles. Theaxis of the shaftor spin dle 0 stands obliquely to the planes of thecheeks a I) to such an extent that in revolving the poles to and bsuccessively confront the fixed poles N and S of the field.

In the construction shown in Fig. 2 the fieldmagnet consists of a coil,0, surrounding the armature A, and fixed at the same inclination to theaxis of the spindle Oasis the armature, so that when the armature is inone position, as shown in dotted lines, the two coils are both in thesame plane. The armature is shown in full lines as turned ahalf-revolution from the position shown in dotted lines, and in a planeat the greatest variance to the plane of the field-coil. The coil 0 isinclosed by a softiron ring, F, so that it forms a circularelectromagnet, of which the opposite rims or flanges, a 8, form theopposite poles. In the position shown in full lines the pole to of thearmature is in nearest proximity to the pole a of the iield and the poleb to the pole s; but in the position shown in dotted lines the pole atis nearest to the pole s and the pole b to the pole n. The armature of amachine of this construction produces an alternating current when usedas a generator, as will be well understood, and to transform this into acontinuous current it is necessary to use a commutator, l), theconstruction of which is well known. The current in the tield magnetwill be continuous.

The construction shown in Fig. 3isidentical with that of Fig. 2, exceptthat the iron ring F is omitted, thereby rendering the coil 0 a simplesolenoid. This enables me to avoid reversing the current in the armatureby reversing it in the field instead. I thus avoid the heating resultingfrom the changes of polarity in the soft iron of the armature. Thecurrent to or from the armature is taken from disks 00 on the spindle O,insulated from each other and pressed upon by springs connected to therespective binding-posts. These disks are shown more in detail in Fig.4.. The cur rent to the coil 0 traverses the commutator l), by which itis alternated. This construction embodies my whole invention.

Fig. 5 shows the application of my invention to machines of largediameter. The armature A forms the felly of a large wheel, I5, which ismounted on the shaft A in a plane inclined to the axis of the shaft, asalready described. The telly of the wheel only need be of iron, theremainder of the wheel being of any suitable material.

I claim as my invention 1. A dynamo-electric machine the armature ofwhich consists of a coil encircling the axis on which it revolves, andarranged in a plane inclined to said axis, substantially as and for thepurposes set forth.

2. The combination, to form a dynamo-electric-machine, of an armatureconsisting of a coil encircling the axis on which it revolves, and woundon a sol'tiron spool the opposite ends or cheeks of which become itspoles, and fixed on its rotary spindle in a plane inclined relatively tothe axis thereof, with a fieldmagnet the fixed poles of which arearranged in proximity to the opposite poles of the armature,substantially as set forth.

3. In a dynamo-electric machine, an armature consisting of a coil woundon a soft-iron spool, which is fixed on its spindle with its axiscrossing the axis of revolution of the spindle at an angle, incombination with a field-magnet consisting of a larger coil encirclingthe armature, and fixed in a plane identical, or nearly so, with that ofthe armaturecoil at one point in the revolution ofthelatter,substantially as set forth.

4. The combination of an armature consisting of a coil wound on asoft-iron spool and mounted on a spindle whose axis of rotation passesthrough the coil at an angle to the central axis thereof, with asolenoid field-coil encircling the armature, and arranged in an inclinedplane identical, or nearly so, with that of the armature at some onepoint in its revolution, and with commutators arranged to cause acontinuous currentto traverse the armature-coil and an alternatingcurrent to traverse the field-coil, substantially as set forth.

In witness whereofI have hereunto signed 20 my name in the presence oftwo subscribing witnesses.

PAUL J ABLOCIIKOFF. Witnesses:

G. GHAPENT, R0131. M. Hoornn.

